Kortni \k(o)-rt-ni, kor-tni\ as a girl's name is a variant of Courtney (Old French), and the meaning of Kortni is "domain of Curtius".

The baby name Kortni sounds like Kourtnie, Kortney, Cortny, Cortnie and Cordni. Other similar baby names are Koryne, Korina, Korin, Koryn, Korine, Fortny, Fortnie, Korena, Koren and Korynn.